The Transit Tech Lab is asking companies to submit their best ideas for improving the sustainability and recovery efforts of public transportation near NYC.

Three startups selected by the Transit Tech Lab plan to test new technologies aimed at reliability and cleanliness.

The Bluetooth-connected devices allow drivers to maintain a GPS signal through four tunnels where coverage was previously unavailable.

A DARPA program successfully demonstrated the capabilities of the small detectors it has been developing to facilitate a network of continuous radiation monitoring.